John haywood compton



J. H. COMPTON.

CONTROLLING CIRCUITS OF PALLET ACTUATING MAGNETS FOR AUTOMATIC ORGANS. APPucATxoN FILED 050.26, |915.

l ,3 1 2,386 Patented Aug. 5, 1919.

JOHN HAYWooD COMPTON, OFNOTTINGHAM, ENGLAND.

CONTBOLLING-CIRCUITS OF PALLET-ACTUATING MAGNETS FOR AUTOMATIC ORGANSV.

Specification of Letters Patent.

Patented Aug. 5, 1919.

Application led December 26, 1916. -Serial No. 138,930.

To all whom it may concern:

Be it known that I, JOHN HAYWOOD COMPTON, a subject of the King of Great Britain, residing at Castle Boulevard, Nottingham, Nottinghamshire, England, have invented new and useful Improvements in Controlling Circuits of Pallet Actuating Magnets for Automatic Organs, of which the following is a specification.

This invention relates to improvements in the controlling circuits of pallet actuating magnets for automatic organs, and has for its object the provision of electrical means for producing solo and accentuating effects.

This invention provides an arrangement whereby the electric current for operating a note or notes in one department ofthe or- Fig. 1 and their equivalents .in

gan can be diverted to loperate the corresponding note or notes in another department of the organ. In a modied arrangement, the current for operating the selected note or notes, instead of being diverted, is

caused to operate such notes in both departments simultaneously.

In the accompanying drawing Figure 1 is a diagram showing electrical connections arranged according to this invention to cause either of two corresponding notes respectively in different departments of an organ to sound alternatively.

Figs. 2 and 3 are diagrams respectively illustrating a modification of the arrangement shown in Fig. 1, and which are hereinafter described.

Fig. 4: is a detail viewv showing the brushes and cooperating conducting bars, which together constitute a' tracker bar and portion of a perforated note sheet adapted to pass between said brushes andv conducting bars to open and close the electrical circuits.

Referring to Fig. 1 ofthis drawing: 1 is a conductor extending from a battery a or other suitable source of electrical energy, through a ypallet actuating 'magnet3 of'a note in 'one vdepartmentfof an`- organ, Vand through acontact 5 to aswitch bar 7. This bar'is connected by a conductor 8 to `one ofa pair of note-.playing contacts 9', 9. Thev other contact of thisV pair connected to the battery c by a conductor 11,.complet ing a circuit.

The contact vdevi-ces 9', 9 and10', 10 in Y Figs'. 2 and 3 `are shown diagrammatically. The contact device may beadvantageously Varranged as shown in Fig. 4f, wherein c indicates a note sheet formed with perforations d, d and adapted to pass between brushes 9', 10' and conducting bars 9, 10 mounted on an insulating base g and together forming a tracker bar, so that when one of the perforations d, d comes into register with a brush 9', 10' the corresponding circuit is closed by the brush coming into contact with the bar 9 or 10 through such perforation.

A second conductor 2 extends through a pallet actuating magnet 4 of a note of the same pitch as that sounded by energization of the magnet 3, in another department of the organ, and through a contactfto the switch bar 7.

The position of the'bar 7 with respect to the contacts 5 and 6, is controlled by electromagnets 12,13 which when energized attract armatures 14, 15, on the bar 7. These lelectromagnets.have their windings 16, 16

connected byv a conductor 17. One end of these connected windings is connected to the battery a by ay conductor 18 and the other end of these windings is connected by a conductor 19 to the conductor 8 at the binding post 20 which also serves to connect the conductor 8 to the switch bar 7. Thus vthe three circuits, through 3, It and 16 are open when the contacts 9", 9 are open.

` Another circuit includes a conductor 21, windings 22 only on the electromagnet 12 and additional to the windings 16 thereon, and a conductor 23. For clearness the windings 22 and conductors 21', 23 are shown by broken lines in Fig. 1. This circuit is open at the diverting contacts 10', 10 between the conductor 23 and the conductor 11 connected. to the battery c.

'When thecontacts 9', 9l and 10', 10 are open, the'. switch bar 7 falls by gravity against the magnet 13 and closes the circuit at the contact 5. If the contacts 9', 9 are then closed by the music roll or its equivalent, the bar 7 is held against the electro- Ymagnet 13 with the contacts 5, 7 closed .so lthat the magnet 3 sounds its note. If while the contacts 9', 9 are closed the contacts 10',

v10 are also closed by the music roll, the circuit through the magnet 4 will remain open at the contact 6 since the magnet 12, although provided with the windings 22 in addition tothe windings 16, is not owerful enough to draw the armature 15 rom the` magnet 13..v j f If the contacts l0', 10 are closed while the contacts 9, 9 are open, the magnet 12 energized by the windings 22 will attract the armature 14 and close the contacts 6, 7. If the contacts 9, 9 are now closedY the magnet 4 will then sound its note but the magnet 13 will not be powerful enough to move the bar 7 to open the contacts 6, 7 so that the contacts 5, 7 will remain open and the magnet 3 will not sound its note. Since the armature is in contact with the poles of the magnet 12, having the two wirlngs 16, 22,

Vit will be retained in this position even if the contacts 10, 10 are opened, until both contacts 9, 9 and 10', 10 are opened.

In the application of the invention to au tomatic organs, the contacts 9, 9 and 10', 10 are so arranged and situated that they are opened and closed by the operation of the the conductor 2l, K

tromagnet 22a Iacting to. attract the said" which it is shown in gized until both 10a', 10a have been simultaneously. opened.

music roll acting through any convenient device for opening and closing circuit contacts, such as `are employed in Athis type of musical instrument. l

The arrangement shown in Fig. 2 is similar in operation to that shown inF ig. 1. In this case'the conductor 1a leads through a pallet actuating magnet 3a in one department of the organ to contacts 5a which are closed or opened by a switch bar 24 carried on a rocking arm 25 mounted on a pivot 26, and the circuit is completed through a conductor 28 and note-playing contacts 9V, 9 corresponding to the contacts 9', 9 in Fig. 1. Another conductor 2a leads through a pallet actuating magnet 4a in another department of the organ to contacts 6, 6a opened or closed by a switch bar 27 on the arm 25, and connected through the contacts 9, 9a to complete the circuit.,

The position of the arm 25 is controlled by two electromagnet circuits. .Y One of these circuits is through a conductor 18@L to windings on an electromagnet 13a, whose armature 15a is carried on the arm 25,1through a conductor 17 a to windings on an electromagnet 12a, `acting to attract the armature 14a on the arm 25, and throughthe conductor 19a and contacts 9a', 9a back to the battery a.

The other electromagnet circuit is through the windings on an elecarmature 14a, and back to the battery a through the conductor 23a and diverting contacts 10a', 10a. The arm 25 may carry a weight .29 to return it to the position vin Fig. 2, when both pairs of contacts 9*,79a andlO-f", 10, are open. By closing the contacts 9,.9a first the circuit through -1a is energized and by closing the contacts .10a, 10 first thecircuitthrough 2 .is energized, but as 1n the arrangementV shown inFig. l, when one of these circuits `is energized, the other circuit cannot be enerpairs of contacts 9*, v 9a and Vcludes the winding of a departments, the pallets of pipes in different departments,

lone kof Vsaid circuits and extreme positioncloses anotherv of sa1dcir- In the 4further arrangement shown in F ig. 3, one organ department circuit including a pallet actuating magnet 3b is through the conductor 1b andthe note-playing contacts 9b, 9b. The other organ department circuit, including a pallet actuating magnet 4b, is through the conductor 2b, contacts 6b, 6b, switch bar 27h, and contacts 9b', 9b. One electromagnet circuit is through a conductor 18h to the electromagnet 13b attracting the armature 15b onl the arm 25b pivoted at 26b and carrying aweight 29b at one end. This circuit is continued through the conductor 17h, electromagnet 12b and contacts 9b, 9b back to the battery. The other electromagnet circuit is through the conductor 21,

electromagnet 22b attracting the armature 14", andk the diverting contacts 10b', 10b to the battery.

` In this case, if the contacts 9V, 9b are closed, the circuit 1b will be energized andv sound its note. If the contacts 10b', 10b are now closed, this will have no effect since the electromagnet 13b will prevent movement of .the arm 25b and the contacts 6b will remain open. If the contacts 101, 10b are closed .when the contacts 9b', v9b are open, the arm 25b will be moved to close the contacts 6b but neither note will be sounded since the cir- .cuits through the conductors 1* and 2b are the pallets of pipes in different departments,

and a device for controlling said electromagnets, said device comprising, in combination, electriccircuits of which each inpallet operating magnetV and a contact device, switch-gear controlling said circuits, said lswitch-gear normally occupying a position in which one ofk said circuits is closed and the other circ uit is opened, electromag'lnets for operating said switch-gear, secondary circuits includingthe windings of said last-named electromagnets lfor .operatingV said switchgear, and al contact device in one of the secondary circuits.

c 2. Anielectric organ having a plurality of electromagnets for operating and a device lfor vcontrolling said electromagnets, said r device comprising, in combination, electric circuitsof which each includes the winding of a pallety operating magnet and a, contact device, switchfgear comprising an oscillatory member which when in one ofy its eXtreme positions closes when in its other cuits, said `oscillatory lmember normally occupying one of its eXtreme positions, electromagnets for operating said switch-gear, secondary circuits including the windings of said last-named electromagnets for operating said switch-gear, and a contact device in one of the secondary circuits.

3. An electric organ having a plurality of departments, electromagnets for operating the pallets of pipes in different departments, and a device for controllin said electromagnets, said device comprising, in combination, a main electric circuit including a source of electric energy, electric circuits which are branched from said main circuit and of which each includes the winding of a pallet operating magnet, a multiple-way switch controlling said branch circuits, said switch having a movablel member normally occupying a position in which it closes one of said branch circuits and opens the other branch circuit, a contact device in said main circuit, electromagnets for operating said movable member, secondary branch circuits incuding the windings of said last-named electromagnets for controlling the position of said movable switch-member, and a contact device in one of said secondary branch circuits.

4. An electric organ having a plurality of departments, electromagnets for operating the pallets of pipes in different departments, and a device for controlling the said electromagnets, said device comprising, in combination, a main electric circuit including a source of electric energy, electric circuits which are branched from said main circuit and of which each includes the winding of a pallet operating magnet, a two-way switch comprising an oscillatory switch-arm which normally stands in the position in which it closes one of said branch circuits and opens the other branch circuit, a contact device in said main circuit, electromagnets for operating said switch-arm in opposite directions, a secondary branch circuit including windings on both switch operating electromagnets, and a secondary branch circuit including windings on one of said switchwhich are branched from said main circuit and of which each includes the winding of a pallet-operating magnet, a two-way swltch comprising an oscillatory switch-arm which normally stands in the position in which it closes one of said branch circuits and opens the other branch circuit, a contact device in said main circuit, an electromagnet adapted to move the switch-arm out of its normal position, a second electromagnet adapted to retain the switch-arm in its normal position, a secondary branch circuit including Windings on both of said switch-operating electromagnets, and a secondary branch circuit including windings on the electromagnet for moving the switch-arm out of its normal position and also including a contact device. 6. An electric organ having a plurality of departments, electromagnets for operating the pallets of pipes in different departments, and a device for controlling said electromagnets, said device comprising, in combination, alternative electric circuits of which each includes the Winding of a palletoperating magnet and a contact device, a switch whereby one of said circuits can be closed at a time, means for normally holding said switch in a position in which it closes one of said circuits and opens the other circuit, and an additional electric circuit including a contact device and an electromagnet adapted to move said switch out of its normal position into one in which the other alternative circuit is closed and the one normally closed is open.

JOHN HAYWOOD COMPTON.

Witnesses:

RONALD E. PUGH, ARTHUR K. GRAHAM.

Copies of this patent may be obtained for nve cents each, by addressing the Commissioner o! Patents, Washington, D. C. 

